XTREME PRO is Mettler’s new high-performance sewing thread for extreme conditions! It is tear and abrasion resistant, UV & seawater resistant and has a PFC-free water repellent finish. It remains reliable and durable even at temperatures as low as -30°C. The high-quality textile look ensures perfect seams for outdoor and upholstery projects. - 30wt- 437yds / 400 meter- Recommended Needle size: Nm 100- Idea for outdoor and upholstery applications- Weather resistance - resists moisture and environmental influences- PFC-free, water repellent finish- UV and seawater resistant - brilliant colors are retained- maximum resilience and durability - extremely tear and abrasion resistant- high quality textile look- tested quality through weathering tests in accordance with ISO 4892-1 andISO 4892-2, as well as cold storage up to -30°.